Best test kit for Cupramine

[atlfishes]

I'm getting ready to use this product and I bought a Red Sea test kit, which measures this product. The problem is it only goes to .4 ppm and Cupramine recommends keeping levels at .5ppm. What do most people use to measure Cupramine levels?

 

[SAT]

What you can do is dilute the sample by half, by mixing 1/2 sample with 1/2 demineralized water. Then multiply the result by 2.

 

[arizona tech]

if you are using the red sea kit the lfs said to have levels at 2-2.5 sound reight to anybody?

 

[Drewpy]

seachem copper test kit...